The phrase "are still elevated" is correct and usable in written English.
It can be used to describe a state or condition that remains high or increased over a period of time.
Example: "Despite the recent changes in policy, the levels of public concern are still elevated."
Alternatives: "remain high" or "continue to be elevated."
Borrowing costs are still elevated for creditworthy companies, as well as for state and local governments.
So far energy prices are still elevated by the standards of 10 years ago, but there might be a benefit.
Even though CFCs were phased out by the Montreal Protocol 30 years ago, levels of chlorine-containing molecules in the atmosphere are still elevated.
One explanation for the claim is that after a miscarriage, levels of hormones like progesterone, which facilitates gestation, are still elevated, increasing fertility.
For example, in depressive patients, even after remission of depressive episodes, harm avoidance scores are still elevated in comparison with those of the general population, despite being lower than those before treatment [32].
As mentioned earlier, despite the absence of any clinical signs of disease in remission, certain systemic markers of inflammation are still elevated suggesting subclinical chronic inflammation [56].
Three of the 5 had been restarted on thyroxin because of the TSH was still elevated suggesting that mild elevations of TSH in infancy may signal persistent elevations in TSH later in childhood.
The slight remaining elevation reflects a couple of factors: spending on safety-net programs is still elevated thanks to a still-depressed economy,and the arrival of the baby boomers is already having a significant impact on retirement programs.
Plasma ACTH levels were still elevated up to seven days to two months.
FFA levels during the clamp were still elevated in the oleate-infused groups (Fig. 3a).
Tensions were still elevated on Friday, but there were some hopeful signs.
